Laser cutting machine with UV code spraying head protection mechanism

Abstract

The utility model discloses a laser cutting machine with a UV code-spraying head protection mechanism, which belongs to the technical field of numerical control machining and comprises a mounting frame, a UV code-spraying head and a laser cutting head, a telescopic cylinder mounting plate is connected to the bottom of the mounting frame, a telescopic cylinder is mounted at the bottom of the telescopic cylinder mounting plate, a connecting frame is mounted through a guide rail, and the telescopic end of the telescopic cylinder is connected with the connecting frame. And the connecting frame is connected with a protective plate. During code spraying work, the telescopic cylinder drives the protection plate to move rightwards through the connecting frame, the descending moving path of the UV code spraying head is avoided, and normal code spraying work is achieved; after code spraying is completed, the telescopic cylinder stretches out to drive the protection plate to move leftwards through the connecting frame, so that the protection plate moves to the position below the UV code spraying head, the descending moving path of the laser cutting head can be avoided, and normal laser cutting operation is achieved; and the protection plate shields and protects the UV code spraying head, so that the influence of splashing of a large amount of metal slag generated during laser cutting and cutting smoke dust on the UV code spraying head is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machining technology, specifically a laser cutting machine with a UV spray head protection mechanism. Background Technology

[0002] In the modern CNC machining industry, UV inkjet printing, with its unique advantages, has gradually become an ideal alternative to traditional zinc powder scribing. As the manufacturing industry's requirements for product marking accuracy, efficiency, and information capacity continue to increase, UV inkjet printing has emerged and rapidly gained popularity. It can achieve high-precision marking, with line width precisely controlled within a very small range, meeting the stringent demands for fine marking. Simultaneously, its excellent quality stability ensures the durability and clarity of the printing effect. In terms of operating costs, compared to traditional processes, UV inkjet printing does not require frequent replacement of expensive consumables, and the equipment has lower energy consumption, significantly reducing long-term operating costs. Furthermore, it can carry a large amount of information, not only printing simple characters but also easily completing the printing and recognition of complex QR codes, providing strong support for product traceability and quality control. These advantages have led to the widespread application of UV inkjet printing in numerous industries such as shipbuilding, marine engineering, machinery equipment, steel box girder manufacturing, and steel structures.

[0003] In laser cutting operations, the UV inkjet printer on the laser cutting machine is typically installed close to the laser cutting head. This arrangement aims to achieve seamless integration of the laser cutting and UV inkjet printing processes, thereby improving production efficiency.

[0004] However, laser cutting involves a complex and harsh working environment. When a high-energy-density laser beam acts on a metal material, it instantly generates extremely high temperatures, causing the material to melt and vaporize rapidly, forming a large amount of molten metal slag. Under high temperature and pressure, this slag splashes outwards at high speed. Simultaneously, the vaporization process generates a large amount of cutting fumes, which are complex in composition, containing metal oxides, carbon particles, and other fine particulate matter. These fumes diffuse in the air and easily adhere to the surfaces of surrounding equipment. Since UV marking mechanisms typically contain precision printheads, electronic components, and optical parts, these splashing molten metal slags, if they impact the UV marking head, can cause printhead blockage and damage to optical components. Furthermore, the diffused cutting fumes can enter the UV marking head through tiny gaps, adhering to the surfaces of electronic components, affecting their heat dissipation performance, and even causing short circuits. Utility Model Content

[0005] To address the problem that laser cutting generates a large amount of molten metal slag and cutting fumes, which can damage UV marking mechanisms, reduce their accuracy, shorten their lifespan, and increase equipment investment and maintenance costs, this invention provides a laser cutting machine with a UV marking mechanism.

[0006] This utility model is achieved through the following technical solution:

[0007] A laser cutting machine with a UV spray nozzle protection mechanism includes a mounting frame. The mounting frame is equipped with a vertically adjustable UV spray nozzle and a laser cutting head arranged opposite each other. A telescopic cylinder mounting plate is connected to the bottom of the mounting frame. A telescopic cylinder is positioned at the bottom of the telescopic cylinder mounting plate. A connecting frame is installed at the bottom of the telescopic cylinder mounting plate via a guide rail. The telescopic end of the telescopic cylinder is connected to the connecting frame. A protective plate capable of shielding and protecting the UV spray nozzle is connected to the connecting frame.

[0008] A further improvement of this utility model is that the guide rail includes a slide rail positioned and installed on the lower side of the telescopic cylinder mounting plate and a slider positioned and installed on the connecting frame and slidingly engaged with the slide rail.

[0009] A further improvement of this utility model is that the protective plate has an L-shaped bent plate structure, and several L-shaped protective plate stiffeners are provided on the lower side at intervals.

[0010] A further improvement of this utility model is that the front edge of the protective plate is provided with a downward-facing flange.

[0011] A further improvement of this utility model is that the vertically bent section of the protective plate is provided with several vertically elongated mounting holes, and bolts for connecting and installing with the connecting frame are inserted into the mounting holes.

[0012] A further improvement of this utility model is that the connecting frame includes a first connecting plate, a second connecting plate, and a third connecting plate that are perpendicularly connected to each other; the upper part of the third connecting plate is connected to the telescopic cylinder mounting plate by a guide rail and slides left and right; the second connecting plate is connected and installed to the telescopic end of the telescopic cylinder; and the first connecting plate is connected and installed to the protective plate stiffener.

[0013] A further improvement of this utility model is that the two ends of the telescopic cylinder body are connected and installed to the lower side of the telescopic cylinder mounting plate through L-shaped bent telescopic cylinder mounting brackets.

[0014] A further improvement of this utility model is that the mounting bracket has an L-shaped bent structure, and the inner side of the L-shaped bent position is connected with a number of mounting bracket stiffeners arranged at intervals.

[0015] A further improvement of this utility model is that the mounting bracket is provided with several weight-reducing holes.

[0016] A further improvement of this utility model is that the mounting bracket is equipped with a laser cutting head drive motor capable of driving the laser cutting head to move vertically and an UV spraying head drive motor capable of driving the UV spraying head to move vertically and adjust.

[0017] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0018] During inkjet printing, the telescopic cylinder retracts, causing the protective plate to move to the right via the connecting frame (the connecting frame is slidably connected to the telescopic cylinder mounting plate via guide rails), completely avoiding the descent path of the UV inkjet printer head and enabling normal inkjet printing. After inkjet printing is complete, the telescopic cylinder extends, causing the protective plate to move to the left via the connecting frame (the connecting frame is slidably connected to the telescopic cylinder mounting plate via guide rails), moving the protective plate below the UV inkjet printer head. This avoids the descent path of the laser cutting head, enabling normal laser cutting. Simultaneously, the protective plate shields the UV inkjet printer head, effectively blocking the large amount of molten metal slag and cutting fumes generated during laser cutting, preventing damage or reduced accuracy, significantly extending the UV inkjet printer head's lifespan, and reducing equipment investment and maintenance costs. The overall structure is simple, easy to use, and highly practical. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of a specific embodiment of the present invention.

[0021] Figure 2 This is a second-view structural diagram of a specific embodiment of the present invention.

[0022] Figure 3 This is a third-view structural diagram of a specific embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the installation of the protective plate according to a specific embodiment of the present utility model.

[0024] Figure 5 This is a schematic diagram showing the connection between the telescopic cylinder and the connecting frame in a specific embodiment of this utility model.

[0025] In the attached diagram: 1. Mounting bracket; 11. Telescopic cylinder mounting plate; 12. Mounting bracket stiffener; 13. Weight reduction hole; 2. Laser cutting head; 21. Laser cutting head drive motor; 3. UV spray nozzle; 31. UV spray nozzle drive motor; 4. Protective plate; 41. Protective plate stiffener; 42. Mounting hole; 5. Telescopic cylinder; 51. Telescopic cylinder mounting bracket; 6. Connecting bracket; 61. First connecting plate; 62. Second connecting plate; 63. Third connecting plate; 7. Slider; 8. Slide rail. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0027] like Figure 1-5 As shown, this utility model discloses a laser cutting machine with a UV spray nozzle protective mechanism, including a mounting frame 1. The mounting frame 1 is equipped with a vertically adjustable UV spray nozzle 3 and a laser cutting head 2 arranged opposite each other. A horizontal telescopic cylinder mounting plate 11 is connected and installed at the bottom of the mounting frame 1. A telescopic cylinder 5 in the left and right direction is positioned and installed at the bottom of the telescopic cylinder mounting plate 11. A connecting frame 6 is slidably installed at the bottom of the telescopic cylinder mounting plate 11 through a left and right direction guide rail. The telescopic end of the telescopic cylinder 5 is connected and installed to the connecting frame 6. A protective plate 4 that can shield and protect the UV spray nozzle 3 is connected and installed on the front side of the connecting frame 6.

[0028] During inkjet printing, the telescopic cylinder 5 retracts, causing the protective plate 4 to move to the right via the connecting frame 6 (the connecting frame 6 is slidably connected to the telescopic cylinder mounting plate 11 via a guide rail), completely avoiding the downward movement path of the UV inkjet printer head 3, thus enabling normal inkjet printing operation. After inkjet printing is completed, the telescopic cylinder 5 extends, causing the protective plate 4 to move to the left via the connecting frame 6 (the connecting frame 6 is slidably connected to the telescopic cylinder mounting plate 11 via a guide rail), moving the protective plate 4 below the UV inkjet printer head 3. This avoids the downward movement path of the laser cutting head 2, enabling normal laser cutting operation. Simultaneously, the protective plate 4 shields and protects the UV inkjet printer head 3, effectively blocking the impact of large amounts of molten metal slag and cutting fumes generated during laser cutting on the UV inkjet printer head 3, preventing damage or reduced accuracy, greatly extending its service life, and reducing equipment investment and maintenance costs. The overall structure is simple, easy to use, and highly practical.

[0029] The mounting frame 1 is equipped with a laser cutting head drive motor 21 that drives the laser cutting head 2 to move vertically and an UV inkjet printer head drive motor 31 that drives the UV inkjet printer head 3 to move vertically. The UV inkjet printer head 3 is slidably connected to the front of the mounting frame 1 via a vertical guide rail and is equipped with an inkjet printer head ball screw mechanism that is connected to the UV inkjet printer head drive motor 31. Similarly, the laser cutting head 2 is slidably connected to the front of the mounting frame 1 via a vertical guide rail and is equipped with a laser cutting head ball screw mechanism that is connected to the laser cutting head drive motor 21. By controlling the rotation of the corresponding drive motors, the corresponding ball screw mechanisms are driven to move, thereby enabling reliable and precise lifting and lowering of the UV inkjet printer head 3 and the laser cutting head 2, achieving accuracy and reliability in inkjet printing and laser cutting operations.

[0030] The guide rail (between the telescopic cylinder mounting plate 11 and the connecting frame 6) includes a slide rail 8 positioned on the lower side of the telescopic cylinder mounting plate 11 and two sliders 7 positioned on the connecting frame 6 and slidingly engaged with the slide rail 8. The cooperation between the slide rail 8 and the sliders 7 enables the connecting frame 6 to move more accurately, stably, and smoothly on the lower side of the telescopic cylinder mounting plate 11. When the telescopic cylinder 5 moves the connecting frame 6 left and right, the two sliders 7 slide along the slide rail 8, restricting the movement trajectory of the connecting frame 6 so that it can only move in the direction determined by the slide rail 8. This ensures that the protective plate 4 can be accurately moved to the predetermined position, effectively shielding and protecting the UV inkjet printing dock 3 or avoiding the inkjet printing operation area, and preventing positional deviations that could affect the protective effect or interfere with the inkjet printing and cutting operations. Furthermore, it provides reliable support and guidance for the connecting frame 6, enhancing the stability of the connection between the connecting frame 6 and the telescopic cylinder mounting plate 11. During the operation of the laser cutting machine, vibrations may occur. The cooperation between the slide rail 8 and the slider 7 can better withstand these external forces, ensuring the structural stability of the protective plate 4 and preventing the connecting frame 6 from loosening or shifting due to vibrations and other factors, thereby ensuring that the protective plate 4 can always play its protective role normally.

[0031] The protective plate 4 has an L-shaped bent plate structure with its rear edge bent vertically downwards. Several L-shaped protective plate stiffeners 41 are spaced apart on its lower side. The L-shaped bent plate structure of the protective plate 4 can shield and protect the UV spray nozzle 3 from two directions. The horizontal part can block molten metal slag and fumes splashing from below, preventing them from directly impacting the bottom of the UV spray nozzle 3. The vertical part can block molten slag and fumes flying from the side, reducing the possibility of them contacting the UV spray nozzle 3 from the side, making the protection more comprehensive. The presence of several L-shaped protective plate stiffeners 41 on the lower side of the protective plate 4 greatly enhances its structural strength. Since the molten slag splashes generated during laser cutting have a certain impact force, ordinary flat plate structures may deform or even be damaged after long-term impact. However, the protective plate stiffeners 41 allow the protective plate 4 to withstand greater external forces, avoiding stress concentration at certain specific points or areas of the protective plate 4. This ensures that the protective plate 4 maintains a stable shape and position during long-term use, continuously and effectively playing its protective role and extending its service life.

[0032] The protective plate 4 has a downward-facing flange at its horizontal leading edge. This downward flange further blocks molten metal slag and cutting fumes generated during laser cutting, building upon the original design of the protective plate 4. Molten metal slag may bounce upwards or bypass the protective plate 4 from the side during splashing; the flange provides a secondary barrier to these potentially bypassing slag and fumes, reducing their likelihood of reaching the UV spray nozzle 3. The flange also alters the flow direction of the slag and fumes, directing them downwards or sideways along the flange's direction, preventing them from spreading directly upwards or towards the UV spray nozzle 3, thus better protecting the UV spray nozzle 3 from damage.

[0033] The protective plate 4 has several vertically elongated mounting holes 42 on its rear vertically bent section. Bolts for connecting and installing with the connecting frame 6 are inserted into these mounting holes 42. These vertically elongated mounting holes 42 allow for a certain amount of vertical adjustment during installation of the protective plate 4. The height of the protective plate 4 can be flexibly adjusted according to actual installation needs and the specific conditions of the equipment to ensure that the protective plate 4 can accurately shield and protect the UV spray nozzle 3, better adapting to different working scenarios and installation requirements.

[0034] The connecting frame 6 includes a first connecting plate 61 vertically connected (welded) in the left-right direction, a second connecting plate 62 vertically connected in the front-back direction, and a third connecting plate 63 (upper side) horizontally connected. The upper part of the third connecting plate 63 is slidably connected to the lower side of the telescopic cylinder mounting plate 11 via guide rails (slider 7 and slide rail 8). The second connecting plate 62 is connected to the telescopic end of the telescopic cylinder 5, and the first connecting plate 61 is connected to the protective plate stiffener 41. The mutually perpendicular structure of the first connecting plate 61, the second connecting plate 62, and the third connecting plate 63 allows the connecting frame 6 to achieve a clear division of labor when connecting different components. This makes the connecting frame 6 form a relatively stable frame structure. When the telescopic cylinder 5 drives the connecting frame 6 to move, or when the protective plate 4 is impacted by molten slag, the connecting frame 6 can better withstand external forces and maintain its shape and position stability, thereby ensuring the stability and reliability of the entire protective mechanism.

[0035] The telescopic cylinder 5 is connected to the lower side of the telescopic cylinder mounting plate 11 via L-shaped bent telescopic cylinder mounting brackets 51 at both ends of the cylinder body. The L-shaped bent telescopic cylinder mounting brackets 51 provide more stable installation support for the telescopic cylinder 5, and make the installation and disassembly process of the telescopic cylinder 5 easier. It can also better adapt to the space layout at the bottom of the mounting bracket 1, improving the space utilization of the equipment.

[0036] The mounting frame 1 has an L-shaped bent structure (including a vertical section and an upper horizontal section), and several mounting frame stiffeners 12 are connected to the inner side of the L-shaped bend. The L-shaped bent structure itself will bear greater stress than a single planar structure when connecting different components. The mounting frame stiffeners 12 can effectively disperse and transfer these stresses, enhance the strength and rigidity of the mounting frame 1 at the bend, and make the mounting frame 1 less prone to deformation or damage under the long-term weight of the UV spray nozzle 3 and the laser cutting head 2, as well as various external forces generated during operation, thus ensuring the stability and reliability of the entire protective mechanism.

[0037] The mounting frame 1 has several weight-reducing holes 13. This effectively reduces the overall weight, lowers the equipment load, saves materials and costs, and reduces the load requirements on the support structure and transmission system of the entire laser cutting equipment, thus improving the equipment's stability and operational accuracy. Furthermore, for laser cutting equipment that requires frequent movement or installation and debugging, the weight-reduced mounting frame is easier to handle and install, lowering labor costs and installation difficulty, and improving the equipment's operability and flexibility. The circular weight-reducing holes 13 can alter the stress distribution of the structure, making the stress more uniform and reducing stress concentration. They can also adjust the natural frequency of the mounting frame to avoid vibration frequencies that may occur during laser cutting equipment operation, thereby reducing resonance, improving the equipment's vibration resistance, and ensuring cutting accuracy and equipment stability. In addition, the weight-reducing holes 13 provide airflow channels, enhancing air convection, improving heat dissipation, preventing component performance degradation or damage due to overheating, and extending the equipment's service life.

[0038] This laser cutting machine with a UV inkjet nozzle protection mechanism works as follows: During inkjet printing, the telescopic cylinder 5 retracts, causing the protective plate 4 to move to the right via the connecting frame 6 (the connecting frame 6 is slidably connected to the telescopic cylinder mounting plate 11 via a guide rail), completely avoiding the downward movement path of the UV inkjet nozzle 3 and enabling normal inkjet printing. After inkjet printing is completed, the telescopic cylinder 5 extends, causing the protective plate 4 to move to the left via the connecting frame 6 (the connecting frame 6 is slidably connected to the telescopic cylinder mounting plate 11 via a guide rail), moving the protective plate 4 below the UV inkjet nozzle 3. This again avoids the downward movement path of the laser cutting head 2, enabling normal laser cutting. Simultaneously, the protective plate 4 shields and protects the UV inkjet nozzle 3, effectively blocking the impact of the large amount of molten metal slag and cutting fumes generated during laser cutting, preventing damage or reduced accuracy, greatly extending the service life of the UV inkjet nozzle 3, and reducing equipment investment and maintenance costs. The overall structure is simple, easy to use, and highly practical.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser cutting machine with UV inkjet head protection mechanism, comprising a mounting frame (1), a vertically adjustable left and right oppositely arranged UV inkjet head (3) and a laser cutting head (2) are installed on the mounting frame (1), characterized in that, The bottom of the mounting frame (1) is connected with a telescopic cylinder mounting plate (11), the bottom of the telescopic cylinder mounting plate (11) is positioned with a telescopic cylinder (5), the bottom of the telescopic cylinder mounting plate (11) is connected with a connecting frame (6) through a guide rail, the telescopic end of the telescopic cylinder (5) is connected with the connecting frame (6), and the connecting frame (6) is connected with a protection plate (4) capable of shielding and protecting the UV code spraying head (3).

2. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The guide rail comprises a sliding rail (8) positioned on the lower side of the telescopic cylinder mounting plate (11) and a sliding block (7) positioned on the connecting frame (6) and slidingly matched with the sliding rail (8).

3. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The protection plate (4) is an L-shaped bent plate structure, and a plurality of L-shaped protection plate rib plates (41) are arranged on the lower side of the protection plate (4).

4. The laser cutting machine with UV-jet printing head protection mechanism according to claim 3, characterized in that, The front edge of the protection plate (4) is provided with a downward flange.

5. The laser cutting machine with UV-jet printing head protection mechanism according to claim 3, characterized in that, A plurality of vertical long hole-shaped mounting holes (42) are formed in the vertical bending section of the protection plate (4), and a bolt connected with the connecting frame (6) is arranged in the mounting hole (42).

6. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The connecting frame (6) comprises a first connecting plate (61), a second connecting plate (62) and a third connecting plate (63) connected with each other vertically; the third connecting plate (63) is connected with the telescopic cylinder mounting plate (11) through a guide rail on the upper side and is connected with the second connecting plate (62) on the lower side; the second connecting plate (62) is connected with the telescopic end of the telescopic cylinder (5); and the first connecting plate (61) is connected with the protection plate rib plate (41).

7. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The two ends of the cylinder body of the telescopic cylinder (5) are connected with the lower side of the telescopic cylinder mounting plate (11) through an L-shaped bent telescopic cylinder mounting frame (51).

8. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The mounting frame (1) is an L-shaped bent structure, and a plurality of mounting frame rib plates (12) are arranged on the inner side of the L-shaped bending position of the mounting frame (1).

9. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, A plurality of lightening holes (13) are formed in the mounting frame (1).

10. The laser cutting machine with UV-jet printing head protection mechanism according to claim 1, characterized in that, The mounting frame (1) is provided with a laser cutting head driving motor (21) capable of driving the laser cutting head (2) to move vertically and a UV code spraying head driving motor (31) capable of driving the UV code spraying head (3) to move vertically.

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